Admission-valve for explosive-engines.



No. 873,534. PATENTED DEC. 10. 1907 H. c. FRIGKE & G. E. TURNER.

ADMISSION VALVE FOR EXPLOSIVE ENGINES! APPLICATION FILED AUG. 30, 1907.

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f/VVENTOR AttorneyD.

UNITED STATES PATENT canlea.

HARRY o. FBIOKE AND GEORGE E. TURNER, OF PITTsBU'RG, PENNSYLVANIA, ASSIGNORS To TURNER-FRIGKE MANUFACTURING COMPANY, OF PITTSBURG, PENNSYLVANIA.

ADMISSION-VALVE FOR EXPLOSIVE-ENGINES Specification of Letters Patent. Application filed August 30.1907. Serial 110.390.772.

Patented Dec. 10, 1907.

. To all whom it may concern:

Be it known that 'WGLHARRY' C. ,FRIGKE and GEORGE E. TURNER, citizens of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Admission-Valves for Exhad to the accompanyin' drawings which illustrateone form in Whic we have contemplated embodying our invention and said invention is fully disclosed in thefol'lowing description and claims.

In the operation of gas or explosive engines, particularly those havingtWo or more cylinders, it is often desirable to throw out of operation the inlet valve, of one or more cylinders, as for example when the engine is to be started by means of compressed air applied to one or more cylinders, and also when 1t is desired to remove and, replace an 1 mter plug While the engine is runnlng', or for t rowing out of operation one or more cylinders of a multicylinder engine when running on a very light load, etc.

X ()ur invention conslsts in making the inletvalve operating rod or stem 1n separate parts, which is in itself desirable as it enables the valve to be operated ina perfectly straight line, without any lateral strain, or twist with respect to its seat, and-we provide one part of the valve rod with a pivoted portion, which can be locked rigidly in operative positionin line with the other'parts of the rod, to operate the valve, and whichcan be released and thrown out of line when desiredso as to disconnect the valve and the operating mechanism therefor when desired.

While the invention is particularly applicable to the inlet valves of explosive engines, it may be used for other purposes if desired or found convenient.

- In the drawings, Figure 1 is a partial sec-' tional view of an explosive engine, taken through the cylinder, piston and a ortion of the crank case on the inlet side of t e engine, and illustrating our invention applied thereto. Fig. 2 is an enlarged view partly in secaperture tion of a portion of the valve actuating rod. Fig. 3 is an enlarged view partly in section showing the bin e or pivotal joint of the movable rod section. Fig. 4 is a horizontal section on line 44 of Fig. 2.

In the drawings. A represents the crank case or base, of an explosive engine which may have one, two or more cylinders, only one of which shows in the section view. represents the cylinder, C the piston,'D the piston rod, all of which may be of-any preferred construction.v 1

F represents the inlet passage for the explosive mixture and F represents the inlet valve, fitting a seat f in said passage. The valve F is provided with a stem f passing through a suitable bearing and having a collarf adjustably secured on its lower end, be-

seated.

Below the valve stem and normally in line therewithiis the in ct valve operatin rod, preferably formed in two (parts f 5 pivotally connected or hinge toget er. The lower end of part f 5 screws into a yoke f 6 pivotally connected by a pin f to a horizon-' tal yoke on the end of an arm f which is pivoted to a stationary art of. the base. Thepin f also carries a 'ction roller fwlii'ch engages the inlet cam h on the inlet 0831i shaft H, said shaft beingdriven by (gearing from the crank shaft at half the spee crank shaft, as is usual in engines of the four cycle type. The part 5 of. the valve rod, extends.

tween which and the bearing is a coiled spring f a which keeps the valve F normally of the through a co lar I, secured to the exterior of the crank case, and provided with a (guiding for the passage of the re The upper partf of thevalve rod is hinged to the part f by a pivot pin f as shown in the drawings, so as to permit the part f 4 to swing outwardly or inwardly, or laterally as preferred, a sufficient distance to 'clisen gage the valve stem f which is in line with the part f of the valve rod, and we prefer to form said hinge, so as to permit thepartf to swing off to an an le of 90 as shown indotted lines Fi 1, alt ough that is not essential.

' I order'to hold the hinged part in operative position, that is in line with the valve stem f and lower part F of the valve rod, we provide a locking s eeve G which surrounds portions of the parts f f adjacent Fig. 1.

I the to their pivotal connection as shown in full linesin Fig. 1 and normally rests on a shoulder or stop f provided on the lower part f of the valve rod to limit the downward movement of'the locking sleeve, The up er part of the rod is'made longer than the s eeve G,

ward movement of the collar Gand prevent it from jarring ofi and'becoming lost when part f is thrown into inoperative position.

' When the part f is thrown out of operative osition as shown in dotted lines Fig. 1, it wiil remain in such position by gravity and the weight of the sleeve G will assist in holding it in such inoperative position. The action of the cam on the lower art of the rod is not disturbed and the va ve can be instantly brought into operation by simply rocking the hinged art f 4 into vertical position, in line with t 1e part f 5 and the valve stem, when the sleeve G will fall over' the hinged portions of the parts f f and lock the parts rigidly.

Whenthe part f of the rod is in operative position, it is obvious that the cam h will elevate the valve F, and as the valve stem f, which forms a part of the valve rod is sepa rate from the parts f 4 f it is obvious that the valve will seat itself accurately under the .action of its retracting spring f after each operation of thevalve, and any lateral motion of the valve rod parts f f will not be imparted to the valve. What we claim and desire to secure by Letters Patent is 1. In an explosive engine, the combination with a valve and its seat, and a valve actuating cam, of. a valve rod interposed between the valve, and cam, said rod havin a hinged part capable of being swung out 0? line with other portions of the rod, and a locking device for holding said hinged art rigidly in operative position, substantial y as described. 2. In an explosive engine, the combination with a valve and its seat, and a valve aetuating cam, of a valve rod interposed between the valve, and cam, said rod having a hinged part capable of being swung out of line with other portions of the rod, and a locking device surrounding portions of said rod adjacent the said hinge connection, for holdin said hinged part in operative position, said locking device being movable longitudinally on' said rod, to release said hinged portion, substantially as described.

3. In an explosive engine, the combination with a valve and its seat, and a valve actuating cam, of a valve rod interposed between the valve, and cam, said rod having a hinged part capable of being swun out of line with other portions of the rod, alocking sleeve on said rod,'adapted to engage portions thereof adjacent to said hingeconnection, for holding said hinged part in operative position, I

and means for holding said sleeve in its operative position, substantially as described.

4.. In an explosive engine, the combination with a valve and its seat, and a valve actuating cam, of a valve rod interposed between the valve, and cam, said rod havin a hinged part capable of being swung out of line with other portions of the rod, and a gravity looking device having a sliding engagement with said rod and provided with portions adapted to surround the rod adjacent to its hinge connection, substantially as described.

. 5. In an explosive engine, the combination with a valve and its seat, and a valve'actuating cam, of a valve rod interposed between the valve, and cam, said rod havin a hinged part capable of being swung out oi line with other portions of the rod, a locking sleeve on said hinged portion, and stops for limiting the movement of said sleeve, substantially as described.

In testimony whereof we affix our signatures, in the presence of two witnesses.

HARRY (l. FRIUKE. GEORGE E. TURNER. Witnesses:

- BEATRICE FITZGERALD,

J. C. RODGERS. 

